ES-8268 Rev.0

R3-GMM1

Remote I/O R3 Series

MODBUS GATEWAY MODULE

(master function, communication distance: 2 km supported)

MODEL: R3-GMM1-[1][2]

ORDERING INFORMATION

• Code number: R3-GMM1-[1][2]
Specify a code from below for each of [1] and [2].
(e.g. R3-GMM1-R/CE/Q)
• Specify the specification for option code /Q
(e.g. /C01/S01)

[1] POWER INPUT

N: No power supply
(Use with Ver.2.00 or higher versions of Power Supply Module
(model: R3-PSx) to conform with CE marking.)
AC Power
M2: 100 – 240 V AC, 50 – 60 Hz^＊
(Operational voltage range 85 – 264 V, 47 – 66 Hz)
DC Power
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.) *
* Not selectable for use with independent power modules or network modules with the internal power input options.

[2] OPTIONS (multiple selections)

Standards & Approvals
blank: Without CE
/CE: CE marking
Other Options
blank: none
/Q: Option other than the above (specify the specification)

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to our web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating
/C04: Polyolefin coating
TERMINAL SCREW MATERIAL
/S01: Stainless steel

CAUTION

This unit cannot be used in combination with anything other than the Ethernet interface module (model: R3-NE2).
Up to four R3-GMM1 can be installed and used on the same base.
If you install anything other than R3-NE2 or R3-GMM1, the system will not operate normally.
Set node address as the unit uses the node address.
If address 0 is used for broadcast communication in the system where the unit is installed, do not use address 0.
The connected device must be R3-NM5 for communication distance of 2 km.
A communication distance of 2 km has been confirmed for 1-to-1 communication at baud rate of 57.6 kbps by using CPEV-0.9 transmission media.
If other devices are connected, the communication distance may not reach 2 km.
Depending on the wiring conditions or the connected devices, connection may not be possible unless the baud rate is reduced.

PACKAGE INCLUDES...

• Terminating resistor (110 Ω, 0.25 W)

GENERAL SPECIFICATIONS

Connection
Modbus: Euro type connector terminal
(applicable wire size: 0.2 to 2.5 mm²,
stripped length 7 mm)
Internal bus: Via the Installation Base
(model: R3-BSx)
Internal Power: Via the Installation Base
(model: R3-BSx)
RUN contact output: M3 separable screw terminal
(torque 0.5 N·m)
Screw terminal: Nickel-plated steel (standard) or stainless steel
Usable address range
• R3-GMM1[1]: 0 to 63 *
• R3-GMM1[2]: 64 to 127
• R3-GMM1[3]: 128 to 191
• R3-GMM1[4]: 192 to 247
The usable address range for R3-GMM1 is fixed.
By setting R3-GMM1 address within the addresses specified in [1] to [4], the usable address range can be used.
* When the address 0 is used for broadcast communication, 0 cannot be used.
Use address 1 or higher.
Note that R3-GMM1 cannot connect to addresses
outside the usable address range.
Isolation: Modbus to internal bus or internal power to RUN contact output
RUN indicator: Bi-color (green/red) LED
Green turns ON when Modbus communication is normal and fieldbus communication on the R3 Network module side is also normal; or
Red turns ON when receiving data.
Indication selectable with side DIP SW.
ERR indicator: Bi-color (green/red) LED
Green turns ON/blinks in communication errors (OFF with wire breakdown; Green blinks with setting errors); or
Red turns ON when transmitting data.
Indication selectable with side DIP SW.
Output transmission stop signal
Indication selectable with side DIP SW.
Transmission enabling signal setting
Indication selectable with side DIP SW.
■ RUN CONTACT OUTPUT
RUN contact: Turns on while the green RUN LED is ON (only when Modbus communication and the field bus built-in the interface module are in normal).
Rated load: 250 V AC @ 0.5 A (cos ø = 1)
30 V DC @ 0.5 A (resistive load)
Maximum switching voltage: 250 V AC or 30 V DC
Maximum switching power: 250 VA or 150 W
Minimum load: 1 V DC @ 1 mA
Mechanical life: 2 × 10⁷ cycles (300 cycles/min.)
When driving an inductive load, external contact protection and noise quenching recommended.

MODBUS COMMUNICATION

RS-485
Standard: Conforms to TIA/EIA-485-A
Transmission distance: 2000 meters max.
The maximum transmission distance of 2000m is applied only when used in combination with an interface module (model: R3-NM5).
When used in combination with other master devices, the maximum transmission distance of the master device is applied.
Transmission media: Shielded twisted-pair cable
(CPEV-S 0.9 dia.)
Supported function codes: 01, 02, 05, 15
Cache function supported commands: 01, 02, 03, 04
Transmission setting: DIP switch (front)
Data: RTU (Binary) or ASCII
Parity: None, even or odd
Baud rate: 4800, 9600, 14.4 k, 19.2 k, 28.8 k, 38.4 k,
57.6k, 115.2 k (bps)
Node address: Rotary switch; 00 – F7
(Address 0 cannot be used when it is used for the broadcast communication.)
No communication time: With PC configurator software (model: R3CON); 2 to 32000 (0.1 sec.)
Inter-frame interval: With PC configurator software (model: R3CON); 0 - 50 msec.

INSTALLATION

Power consumption
•AC:
Approx. 20 VA at 100 V
Approx. 28 VA at 200 V
Approx. 30 VA at 240 V
•DC: Approx. 13 W
Current consumption (no power supply): 80 mA
Output current (power supply): 270 mA continuous at 20 V DC; 420 mA for 10 minutes
Operating temperature: -10 to +55°C (14 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Atmosphere: No corrosive gas or heavy dust
Mounting: Installation Base (model: R3-BSx)
Weight: 200 g (0.44 lb)

PERFORMANCE

Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 1500 V AC @ 1 minute
(Modbus to internal bus or internal power to RUN contact output to FG)

STANDARDS & APPROVALS

EU conformity:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
Low Voltage Directive
EN 61010-1, EN 61010-2-201
Installation Category II (power input)
Pollution Degree 2
Power input or RUN contact output to internal
power or internal bus or Modbus:
Reinforced insulation (300 V)
Power input to RUN contact output:
Reinforced insulation (300 V)
RoHS Directive